TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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. Remove 1. Move 12 dust caps (A) away from tube connections at fuel injection pump. 2. Disconnect six fuel injector tubes (B) from fuel in- jection pump front hydraulic head. Remove tubes (C) 4R, 5R, and 6R. 3. Remove tubes (D) 1R, 2R, and 3R by pulling tubes, singularly, between exhaust manifold and cylinder. 4. Disconnect six fuel injector tubes (E) 1L through 6L from fuel injection pump rear hydraulic head. In- dividually remove tubes. Note. After fuel tubes have been removed, plug all fuel injection pump hydraulic head fuel ports to prevent entrance of dirt. Install 1. Individually position six fuel injector tubes (E) from cylinder NOS. 1L through 6L to fuel injection pump rear hydraulic head. Connect tubes to rear hydraulic head. 2. Individually position three fuel injector tubes (D), between exhaust manifold and cylinder, from cylinder Nos. 1R, 2R, and 3R to fuel injection pump front hydraulic head. 3. Individually position three fuel injector tube cylinders (C) from cylinder Nos. 4R, 5R, and 6R to front hydraulic head. Connect six tubes (B) to hydraulic head. 4. Install 12 dust caps (A) to tube connections at hydraulic heads. Figure 5-67. Removing or installing fuel Remove 1. Remove two setf-locking nuts (A), flat washers, and bolts attaching right and left bank exhaust pipe retaining straps at rear of engine and remove straps. 2. Remove two self-locking nuts (B), flat washers, and bolts attaching right and left bank exhaust manifold retaining straps at center of engine and remove straps. Install Note. Some engines had only two sets of retaining straps securing right and left bank exhaust pipes. When rebuilding engine, install the additional pair of clamps (step 1) securing the right and left bank exhaust pipes. 1. Position retaining straps on right and left bank exhaust manifold at center of engine and insta11 two self-locking nuts (B), flat washers, and bolts securing straps. 2. Position retaining straps on right and left bank exhaust pipes at rear of engine and install two self- locking nuts (A), flat wasbers, and bolts securing straps. Figure 5-68. Removing or installing exhaust manifold and exhaustpipe retaining straps. injector tubes at fuel injection pump. 5-40